Perl - How do you you check the return code of a command in Perl

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How do you you check the return code of a command in Perl

Suppose you run a program/script in Perl:

system("./server ....");

How will you check the return code?

Total Answers and Comments: 3

Last Update: June 22, 2009 Asked by: mpathak

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December 06, 2007 12:20:22

perl_guy

Member Since: December 2007 Contribution: 1

RE: How do you you check the return code of a command in Perl

system calls *traditionally* returns 0 when successful and 1 when it fails.

system ( cmd ) && die "Error - could run cmdn";

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July 11, 2008 17:16:26

kglukhov

Member Since: July 2008 Contribution: 2

RE: How do you you check the return code of a command in Perl

# Retrieve the higher byte of the two-byte return code

my $ret system("./server") >> 8;

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June 22, 2009 04:33:36

amitkshirsagar

Member Since: June 2009 Contribution: 3

RE: How do you you check the return code of a command in Perl

$r system("command .. e.g. search");
print"r is $rn";

Here if $r is 0 that means command has executed successfully.
Any other value means command has failed.

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